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经营范围
发明名称
Method for checking and recovering data transfer line trouble
摘要
申请公布号
KR100769957(B1)
申请公布日期
2007.10.24
申请号
KR20040038381
申请日期
2004.05.28
申请人
发明人
分类号
H04L12/24
主分类号
H04L12/24
代理机构
代理人
主权项
地址
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